Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 1, pages 13-15

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 1, pages 25-27

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 2, pages 32-40

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 2, pages 41-45

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 3, pages 57-63

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 3, pages 66-73

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 3, pages 74-77

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 4, pages 89-92

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 4, pages 93-96

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 4, pages 101-103

Published in Carnivorous plant newsletter, in 1982, in volume 11, issue 4, pages 104-106